Patent US3097307A successfully refreshed from Google Patents.
US3097307A
Expired / Lapsed
US
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Opposite conducting type transistor control circuits
Assignee: Unisys Corp
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Filing: 1955-07-06
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Granted: 1963-07-09
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Expires: 1975-07-06
Abstract
No abstract record available.
Inventors
- 👤 Theodore H Bonn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:52
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/02; G11C11/06; G11C11/06007; H; H02; H02K; H02K3/00; H02K3/32; H03; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/60; H03K17/62; H03K17/6221; H03K17/6285; H03K17/66; H03K17/661; H03K17/662; H03K17/663; H03K19/00; H03K19/02; H03K19/08; H03K19/082
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A SWITCHING CIRCUIT COMPRISING A LOAD, A FIRST TRANSISTOR OF A CERTAIN TYPE HAVING ITS COLLECTOR COUPLED TO ONE TERMINAL OF SAID LOAD, A SECOND TRANSISTOR OF A COMPLEMENTARY TYPE HAVING ITS COLLECTOR COUPLED TO ANOTHER TERMINAL OF SAID LOAD, FIRST CONTROL MEANS COUPLED BETWEEN THE BASE AND EMITTER OF SAID FIRST TRANSISTOR FOR SELECTIVELY APPLYING SIGNALS THERETO TO CONTROL THE CONDUCTIVITY OF SAID FIRST TRANSISTOR, AND SECOND CONTROL MEANS COUPLED BETWEEN THE BASE AND EMITTER OF SAID SECOND TRANSISTOR FOR SELECTIVELY APPLYING SIGNALS THERETO TO CONTROL THE CONDUCTIVELY OF SAID SECOND TRANSISTOR, MEANS FOR APPLYING ENERGIZING SIGNALS TO ONE OF SAID BASE AND EMITTER ELECTRODES OF EACH OF SAID TRANSISTORS TO PASS CURRENT IN A SERIES CIRCUIT VIA SAID ONE ELECTRODES AND SAID COLLECTORS THROUGH SAID LOAD IN ACCORDANCE WITH SAID CONTROL MEANS
Claim 2
Dependent Claim
134 words
A SWITCHING CIRCUIT COMPRISING A LOAD, A FIRST TRANSISTOR OF A CERTAIN TYPE HAVING ITS COLLECTOR COUPLED TO ONE TERMINAL OF SAID LOAD, A SECOND TRANSISTOR OF A COMPLEMENTARY TYPE HAVING ITS COLLECTOR COUPLED TO ANOTHER TERMINAL OF SAID LOAD, FIRST CONTROL MEANS COUPLED BETWEEN THE BASE AND EMITTER OF SAID FIRST TRANSISTOR FOR SELECTIVELY APPLYING SIGNALS THERETO TO CONTROL THE CONDUCTIVITY OF SAID FIRST TRANSISTOR, AND SECOND CONTROL MEANS COUPLED BETWEEN THE BASE AND EMITTER OF SAID SECOND TRANSISTOR FOR SELECTIVELY APPLYING SIGNALS THERETO TO CONTROL THE CONDUCTIVELY OF SAID SECOND TRANSISTOR, MEANS FOR APPLYING ENERGIZING SIGNALS TO ONE OF SAID BASE AND EMITTER ELECTRODES OF EACH OF SAID TRANSISTORS TO PASS CURRENT IN A SERIES CIRCUIT VIA SAID ONE ELECTRODES AND SAID COLLECTORS THROUGH SAID LOAD IN ACCORDANCE WITH SAID CONTROL MEANS
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-08 | 1967-01-07 | 1967-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-08 | 1971-01-07 | 1971-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-08 | 1975-01-07 | 1975-07-09 | $7700.00 | Window Closed / Lapsed |